include winsock2.h instead of winsock.h

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5105 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/sofia-sip/libsofia-sip-ua/stun/sofia-sip/stun_common.h

@@ -42,7 +42,7 @@
 #include <time.h>
 
 #ifdef WIN32
-#include <winsock.h>
+#include <winsock2.h>
 #else
 #include <sys/socket.h>
 #include <arpa/inet.h>